What are PLUS Building Classifications?
PLUS Building Classification levels measure relative risks, based on a facility’s attractiveness to terrorist attacks as well as the impact or consequences of a major security incident. PLUS uses 4 Building Classification classes, A (high), B (medium), C (low) and D (minimum). Risk is assessed qualitatively and quantitatively. Class A buildings reflect the highest risk; e.g. high-rise office buildings in New York City, the International Monetary Fund in Washington, DC, and the New York Stock Exchange.